Mike,
I collected 4 spare IRF250 power Mosfets for the Decca TX from the Crawley
Club at the meeting last night and will stick them in the post to you
soonest. I was unable however to find among the remaining bits and pieces
one of the protective MOV devices but similar ones are available from RS or
Farnell distributors
73, de Derek Atter, G3GRO
----- Original Message -----
From: "mike.dennison" <[email protected]>
To: <[email protected]>
Sent: Monday, May 27, 2002 5:39 PM
Subject: Re: LF: Decca component
Thank you to all those who have commented on my Decca Tx unit failure. As
the Tx has three units, and two are still working, I was able to compare
good with bad. This resulted in finding two faulty transistors, one open
circuit and one short circuit. Amazingly, the unit still gives 100W or so
output. Obviously the burnt component (which I now know to be a MOV)
failed
at the same time.
Thanks to Derek, G3GRO, and the Crawley Club, I should have replacements
soon. In the meantime, the other two units are giving me a few hundred
watts.
Mike, G3XDV
http://www.lf.thersgb.net
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